Assumption Parish, Louisiana
Assumption Parish, Louisiana, has 19,720 residents (July 2025 estimate). Its county seat is Napoleonville. It uses Central Time and covers 344 sq mi (891 km²) of land. It is a county equivalent (parish).
- Resident population, July 2025
- 19,720
- Land area
- 344 sq mi (891 km²)
- County seat or government
- Napoleonville
- Time zone
- Central TimeUTC-06:00 in January; UTC-05:00 in July
- Median household income
- $51,423 ± $5,497
- Median home value
- $150,300 ± $22,891
- Median rent, with utilities
- $810 ± $64
- Homes lived in by their owners
- 84.8% ± 2.9 points
- County type
- Parish
- Metro or micro area
- Baton Rouge, LA metro areaOutlying parish
- Water area
- 25.9 sq mi (67.1 km²)
- State
- Louisiana
- County code (FIPS)
- 22007
- Coordinates (central point)
- 29.903300, -91.065219
These coordinates mark a central point for the area, not a street address. Income, home value, rent and homes lived in by their owners: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, ± margin at 90% confidence; checked on October 13, 2026.
Time zones in Assumption Parish
| Time zone | Local time and UTC offset | Next clock change |
|---|---|---|
| Central TimeAmerica/Chicago | UTC-06:00 in January; UTC-05:00 in July. Enable JavaScript for the live clock. | Enable JavaScript for upcoming changes. |
Near a time-zone line, check where you are with the time-zone finder. Your phone’s setting can differ.
ZIP Code areas, largest first
- 7030150,095 people
- 7038020,529 people
- 703469,927 people
- 703907,160 people
- 703394,848 people
- 703413,690 people
- 703721,968 people
- 70393117 people
- 703910 people
9 ZIP Code areas overlap Assumption Parish. People counts are 2020–2024 estimates for each whole ZIP area. Mailing ZIPs can differ; check an address with USPS ZIP Code Lookup.
Official county information
We don’t have a website for this county yet. The US government’s local-office directory ↗ lists its offices. A geographic lookup cannot determine eligibility, tax liability or a court obligation.
School districts in Assumption Parish, largest first
- Assumption Parish School District20,484 people
Districts with land in the county; a district can cross county lines. People counts are American Community Survey 2020–2024 5-year estimates. A district boundary doesn’t decide which school a student attends.
Tribal areas in Assumption Parish, largest first
American Indian, Alaska Native and Native Hawaiian areas as the Census Bureau maps them, with at least 2% of their area here, water included. These lines don’t decide membership, jurisdiction or land status.
Cities, towns and communities, largest first
These areas overlap the mapped boundary; an overlap does not mean that every address belongs to both.
- Pierre Part, Louisiana (CDP)2,308 people
- Bayou L'Ourse, Louisiana (CDP)2,132 people
- Labadieville, Louisiana (CDP)1,408 people
- Belle Rose, Louisiana (CDP)1,400 people
- Paincourtville, Louisiana (CDP)1,008 people
- Supreme, Louisiana (CDP)803 people
- Napoleonville, Louisiana (village)511 people
- Bayou Corne, Louisiana (CDP)183 people
Bordering areas, nearest first
Distances are straight lines between map points.
- St. James Parish, Louisiana18 mi northeast
- Ascension Parish, Louisiana23 mi northeast
- St. Mary Parish, Louisiana30 mi southwest
- Iberville Parish, Louisiana31 mi northwest
- St. Martin Parish, Louisiana36 mi northwest
- Terrebonne Parish, Louisiana42 mi south
- Lafourche Parish, Louisiana49 mi southeast
- Iberia Parish, Louisiana51 mi southwest
Before using this answer on a form
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